Portable mortar hopper



FIG. 1 is a perspective view of a portable mortar hopper embodying theinvention;

FIG. 2 is a front view thereof; and,

FIG. 3 is a side view thereof.

The second side view, the bottom view, the top view, and the rear viewform no part of the claimed design.

The broken line showing of portions of the portable mortar hopper isincluded for the purpose of illustrating environmental structure andforms no part of the claimed design.

The ornamental design for a portable mortar hopper, as shown anddescribed.